How to upgrade to Linux Mint 18.3

It is now possible to upgrade the Cinnamon and MATE editions of Linux Mint 18, 18.1 and 18.2 to version 18.3.

Upgrades for the Xfce and KDE editions will be available later this year, once these editions have been released as stable.

If you’ve been waiting for this we’d like to thank you for your patience.

1. Create a system snapshot

Timeshift was backported to Linux Mint 18, 18.1 and 18.2. You can use timeshift to make a system snapshot before the upgrade.

If anything goes wrong, you can easily restore your operating system to its previous state.

To install timeshift, open a terminal and type:

1

2

apt update

apt install timeshift

Launch Timeshift from the application menu, follow the instructions on the screen to configure it and create a system snapshot.

2. Prepare for the upgrade

Disable your screensaver

If you installed Cinnamon spices (applets, desklets, extensions, themes), upgrade them from the System Settings

3. Upgrade the operating system

Upgrading to Linux Mint 18.3 is relatively easy.

In the Update Manager, click on the Refresh button to check for any new version of mintupdate and mint-upgrade-info. If there are updates for these packages, apply them.

Launch the System Upgrade by clicking on “Edit->Upgrade to Linux Mint 18.3 Sylvia”.

Follow the instructions on the screen.

If asked whether to keep or replace configuration files, choose to replace them.

Once the upgrade is finished, reboot your computer.

Commonly asked questions

Although Linux Mint 18.3 features a newer kernel, this upgrade does not change the kernel on your behalf. This is a decision only you should take.

Same goes for the choice of display manager or the software selection. Applications won’t be removed or switched on your behalf. You can decide to make these changes, but you certainly don’t have to.

After the upgrade, you can install newly introduced applications such as redshift-gtk and mintreport from the repositories.

If you are running Cinnamon or MATE and the upgrade is not available to you, check that you have the latest versions of mintupdate and mint-upgrade-info installed. If the latest versions are not yet available in your mirrors, switch to the default repositories.

This happens rarely, but if you ever got locked and were unable to log back in, switch to console with CTRL+ALT+F1, log in, and type “killall cinnamon-screensaver” (or “killall mate-screensaver” in MATE). Use CTRL+ALT+F7 or CTRL+ALT+F8 to get back to your session.

Other than that, there’s also the libinput drivers (which overrides synaptics): xserver-xorg-input-libinput

And last but not least, we added support for spelling and synonyms and all.. but I don’t think there’s a need for you to install this (especially not for other languages than yours). You’re better off using the Language Settings tool and checking that everything is properly installed for your language in there.

Quoting from above:
“If you are running Cinnamon or MATE and the upgrade is not available to you, check that you have the latest versions of mintupdate and mint-upgrade-info installed. If the latest versions are not yet available in your mirrors, switch to the default repositories.”

To switch to the default repositories, should that be necessary, you just click “Edit->Software sources” and then “Restore the default settings”. Refresh the update manager, and an update for mint-upgrade-info should appear. That update is what adds the option to the menu.

Same here. Linux Mint 18.2 Cinnamon 64-bit. I have installed all available updates, refreshed Update Manager several times, rebooted, refreshed Update Manager again, but still no option to upgrade to 18.3. Is it a phased update?

No. If you’re on 18.3 BETA you don’t need to “upgrade”. You’re already pointing to the 18.3 repositories and all the fixes released during the BETA phase are already available to you. You can just use your Update Manager to apply them if you haven’t already done so.

One more interesting thing. Pressing the folder button (Обзор in Russian) launches Audacious that begins scanning file system. If I remove Audacious that button opens Double Commander. I stopped experimenting on that. Also it’s not easy to close Audacious after such operations. It’s doing something with root permissions on 50 % of CPU.

I will make the image of system partition before upgrade. It is more familiar to me.

Mint Cinnamon has to be the most polished system out there. I’ve been using 18.3 since it’s beta release and it has been rock solid. I would like to thank everyone at the Mint team for this wonderful system.

I had already instaled 4.10.0-40 generic system kernel prior to upgrade from 18.2 to 18.3,
The update manger is now (after upgrade to 18.3) proposing to install the 4.10.0-38-generic kernel (which is already present on my system, the 4.10.0-40 kernel being the active one),
Why is this?
Any action required on my side?
Thanks for your response and thanks for an awesome upgrade.

I also had installed Kernel 4.10.0-40 on my system. The 4.10.0-38 is just a meta-package, and when you install it (I’ve done it), it just checks if you are running a newer kernel and does nothing. After the installation, it disappears from the list. Install it confidently!

A few minutes ago, my update shield turned blue. At 09:30 I started the upgrade from 18.2 to 18.3. It was done in 4 minutes flat, plus 1 minute to reboot. 09:35 I am logged back in. Super smooth. Thank you SO much Mint Team!!!

I was wondering, can we expect 18.3 to take less resources and be more efficient than 18.2?
Is it as fast with the same hardware? Has it added background processes?
I like Mint minimalistic approach and wanted to know if it is kept in 18.3.

Hi Clem,
Many thanks for freeing me from the tyranny of Microsoft! with such a great alternative in Linux Mint! I have only been using Linux (Mint) for around 12 months and I love it. I have tried most of the other live versions flavours of Linux but just find Mint is the best for me. So now I have a question regarding 18.3 Beta to 18.3 release version, is this now advisable and can that be done like upgrading from 18.2? or is my beta version now a fully fledged release version? okay make that a couple of questions…. Thanks again, Regards Len

I’m really enjoying Mint Cinnamon 18.3. It rocks and has no bugs whatsoever for me.
And again, thank you so much for making the ia320libs available so we can run 32bit architecture
on our 64bit machines. Neither Debian nor Ubuntu gives us this option.
I even got adobe Air to work. 😀 That gives me my favorite Pandora player!

As far as Mint Mate goes, I’m sticking with 18.1..I DO love that ability to change COLORS of my themes. 😉
Thanks for everything! If I don’t hear from you, everyone have a MERRY CHRISTMAS!!

“As far as Mint Mate goes, I’m sticking with 18.1..I DO love that ability to change COLORS of my themes. ”
I still use 18 Sarah (MATE), I like the tweakable themes too. I may not upgrade if what you say is true.

Awesome job on the last 18.3 upgrade, took about 5 minutes for full upgrade from 18.2 to 18.3
I have upgrade my machine from 17.3 to 18 to 18.1 18.2 now 18.3 excellent and stable OS works perfectly.
I will probably change my laptop sooner then the need to reinstall the OS from zero.
Happy to be LinuxMint User

Hi, the upgrade from 18.2 went fine but the backup tool software selection (back up now) window is empty and not showing anything. Will it only show programs I install from now on or is it supposed to show what I already had installed on 18.2?

Was it installed previously? Bear with me please, this is fairly new to mer and my other Mint 18.2 machine gave my the 10% of disk left error a day or so back, 80 GB drive and a second one that I seem to have to mount again and I’ve had to reinstall on this machine before…All of my Linux Mint machines are 11-15 years old and run later Pentium and G-series Intel.

I went and changed my ‘level; to install all updates and it gave me more, not totally sure that the 4.10.0-38-generic kernel installed yet, still have no idea what no support for locale: en-us-utf8 means and I have no idea how to copy the stuff it’s spits out at breakneck speed in that window I can’t resize to actually read well anyhow, have to hope it’s basically talking to itself and knows what it’s doing.

So YES, total noob, will be looking for trouble like I’m in a bad neighborhood ;_p

Now I’m in 18.3 on the Intel G620 based machine I’m typing from now, I gather I’m okay but I shall look for this timeshift thing that I doubt I had before. This is an MPC ClientPro 385, the other one is a Dell Dimension E310 (3100) so we are talking about old but I actually still have a 32-bit P4 HP and an even older MPC ClientPro 365 that confounds me because even after pulling the battery for a long time and the memory too the Windows 7 screen comes up, even WITHOUT drives…thing’s haunted.

Hi Clem, hi Linux Mint team!
You’ve done some fantastic work again! My upgrade from 18.2 to 18.3 went so smooth that I had to laugh at your warnings, I’m sorry.
I shall test 18.3 now (on my Lenovo W530, Intel Core i7 3720QM, kernel 4.13.0-17), and enjoy it, I’m sure!
There is one little question though that I couldn’t find answers to in your forums:
How can I use more than one toolbar? I know how to place them on my desktop, I know the settings possibilities in the settings manager, but how can I drag icons to the bar of my liking?
Maybe that has to show somewhere in the settings dialogue…
Thanks again, also for your always friendly replies here in your blog!
Jörg

Do you mean program icons (like Firefox, etc) or applet icons (like Calendar)?

If you mean program icons (like Firefox), right-click on the desired panel and choose “Add applets to the panel”. Then select “Panel Launchers” as the applet to add.

That will place the default Panel Launchers applet on the panel. The default apps are usually Firefox, Nemo and Terminal. You can now add a program icon (eg Thunderbird) by right-clicking that program in the main menu and choosing “Add to Panel”.

If it lands on the wrong panel, you can move the icon to another panel by holding the mousebutton down on the icon and dragging it to the other panel.

Is it possible to revert the behavior of the update manager icon? In 18.2 the ⓘ-icon would only show up when there were recommended updates available, according to my preferences for which updates to auto-select. Now it seems to be showing up for all updates, including non-selected ones. I’m aware of your recommendations for the different levels of updates, but I’m mostly quite content with level 1 or 2 updates, most of the time.

Linux Mint team thank you for a great update my Cinnamon desktop is running so smoothly its like having a new machine. No trouble with the update everything went smoothly took only 5 to 10 minutes. Thanks again for a great desktop OS.

The sources I was using (mirrors in Argentina/Brazil/Evowise) threw unsigned errors and other hard-to-understand errors until I realized the issue was with the mirrors. Please help noob users figure out the problem in this case

Hello. I am running “mint 18.2 mate 64-bit” and upgraded package “mint-upgrade-info”. I did not upgraded yet, so my system is still “18.2”. Question is: will “18.2” will get upgrades of packages (especially level 1) after release of 18.3, or must i upgrade to 18.3?

If you are happy with 18.2 and don’t want any of the new features of 18.3, then you don’t have to upgrade.
You will receive all updates (also level 1, e.g. firefox etc.) the same as any other 18.x version.

Hi there,
Thank you for your work, the update went fine and the first reboot was normal, but since then, every time I boot, I end up on a console login. I can login and ‘startx’ afterwards, no problem, the OS is running fine after that.
But how could I make Mint start directly?
Also, don’t know if it’s related, but I see this warning with dmesg | grep -i warning:
[ 6.882941] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x000000000000042C-0x000000000000042D (\GP2C) (20160930/utaddress-247)
Thank you!

I upgraded from Mate 18.2 to 18.3. The upgrade itself was smooth, took just a few minutes, rebooted successfully, everything looks fine. Then I tried to install a couple of flatpak apps, VLC and LibreOffice. In each case, after a few seconds there was a message “installing additional dependencies”. Then the install just quit; the apps were not installed. Is there a log someplace to see what went wrong?

Another trouble free upgrade. Everything went as smooth as silk. I sometimes wonder if people take the time to clean their computers ever. Get the vacuum out and get the dust out and let it breath. Thanks Mint team.

Thank you! Wonderful update, I hope you will continue to maintain the Mate edition for the future versions. Now it’s my main OS, alongside windows 10 that I use only for some apps that are not in the linux world. In a few words… Linux Mint… what else?

Dears MintTeam! Thanx for your work!
There are some problem with TimeShift on my PC. Root directory / runs on RAID-0 disks mounted with motherboard properties (do not use mdadm). And when I start Setup Wizard of TimeShift application, then choose RSYNC Snapshot and “next’ button it crashes. I’ve used the “rsync” terminal command instead, but I think you can fix this next release.

***BUG*** (? or do I just need to fix something?)
I upgraded from Mate 18.2 64bit to 18.3, then tried to install some flatpak apps. Didn’t work. So I started mintinstall from a terminal and got this result:

Clem and Team- Wonderful upgrade experience from Cinnamon 18.2 to 18.3 except for this: On reboot (or F5) Computer and Trash icons change desktop position. They had been previously selected to show up on desktop (System Settings>Desktop>Desktop Icons) in 18.2 prior to upgrade and held their position flawlessly on reboot.

My upgrade went well, but I did notice a weird regression in the Update Manager. My Update Policy is set to “Always Update Everything”. After the upgrade to 18.3, I was offered the new kernel by the Update Manager and chose to upgrade. After this (and a reboot), if I go into View > Linux Kernels, it reports the wrong kernel as running and the list of available kernels is empty. I have confirmed that I am running the new kernel, but it appears that this is no longer being detected. It’s a minor issue in the scheme of things, but it’s a bit strange. I’d be interested to know if anyone can reproduce these symptoms.

Wonderful and FAST upgrades, well done Mint team.
Everything seems to have installed OK and updated (18.2 > 18.3), however when using the backup tool to Software Selection/Backup Now and, NOTHING appears in the list at all. This has happened on two systems I’ve updated, one Cinnamon, the other Mate. I’ve even gone as far as completely removing it with synaptic on the Mate, reboot, and then reinstall mintbackup with synaptic with the same result. Suggestions?

Flawless upgrade, good job! Only I can’t use Gnome online accounts for Facebook. Everytime I try to log in, the Facebook window pops up and says “You previously logged in to GNOME with Facebook.”. I tried deleting ~/.config/goa-1.0/accounts.conf without any result. Also I disconnected Gnome as application from my profile, but no result either. I guess if I am able to delete the cookie that Facebook set on the Gnome Online Accounts browser could help. Any ideas?

Check your acceleration with “inxi -Gx” (It should say Direct Rendering: Yes). Also check ~/.xsession-errors for error messages. Try to run “cinnamon –replace” manually to see if you can spot messages there as well. Check your cinnamon packages to make sure they’re all upgraded and none are left at 3.4. Make sure cinnamon itself is installed of course.. go in system settings and disable 3rd party applets/desklets/extensions in case one of them causes the issue. Let us know when you find out what went wrong.

After following the procedure and installing timeshift, the update manager disappeared. I restarted my computer, only to find out that i can’t login, neither into my normal/root account, nor as a guest. Anyone else having this problem?

First of all a million thanks and appreciation to Clem and the Mint Team for yet another release of this most wonderful OS. I just upgraded to 18.3. All seems to be going well. There is one small unexpected behavior in Update Manager though. My update policy is “Just Keep My Computer Safe”. But under preferences I select the option to always show security and kernel updates. With this setting, security and kernel updates in Level 4 are shown but not selected. Under 18.2 when there are such security and kernel updates and no other updates from level 1-3, the icon on the system tray is a green tick and says system is up to date which is what is expected. But with 18.3 the icon turns blue and consider the level 4 security and kernel updates as updates that are available.

Just for the info of those who find that running Software Manager from the menu does not work after the upgrade even after entering the password. You need to edit the menu property for Software Manager so that it runs as normal user instead of root user. Change “gksu mintinstall” to “mintinstall” and it should work.

I apologise for a potentially silly question (I’m not a power-user, just an ordinary one) : I’ve been a Mint KDE user (a very happy one !) for quite a while but since the fateful announcement of KDE being condemned to oblivion I installed MATE on top of my KDE edition and have never been happier since (MATE has become my best mate, so to speak).

My question is, as I don’t need KDE anymore and it is quite a bulky thing, would it be possible to :
a) upgrade to the MATE version of Mint 18.3, or …
b) install the MATE edition on my PC in such a way that the installation doesn’t destroy my settings. I have my /home on a separate partition so personal settings would survive ; I’m concerned about the system settings like all previously installed apps to appear on my menus, applications installed in /opt or /usr/bin (like blender for instance.) etc.

I’m using several Linux Mint Cinnamon editions and have a separate /home filesystem as well.
I did your approach myself but with one difference: I always use the same flavour: Cinnamon.
I updated all existing applications I use to the latest version on the old installation.
I have a list (or a screenshot) kept around to remember all the additional software sources or PPAs
I have configured in the old installation.
Then I did a fresh install on the root filesystem and didn’t format the /home filesystem.
After successfull installation I added the PPAs and software sources, again and installed the software I use from those.
Everything worked fine.
However, in your case, I wouldn’t do it.
KDE and the other flavours of Linux Mint are too different to hope that most of the
settings, especially the KDE related ones would be kept. I guess, e.g., the firefox profile might be kept and work, but your themes, extensions, etc. won’t.

Thanks for your work – I run Mint/Mate on a bunch of machines here and love it. However, I just did a wipe and replace on one – rather than an upgrade, as it was a few versions old – which was a dev machine. I can no longer get perl’s GTK3 module to install, it complaining about a too-old version of gobject-introspection (.04 vs .043) so none of my dev work (perl/glade/gtk) can be done or the programs already written fron mate 1.12 on up will run at all. Flavors of mint 17 and 18.1 and 18.2 don’t have this issue, and I’ll be installing one of them on that dev box till I hear about a fix, I suppose. Just a heads-up, the upgrade probably works due to some of the bits from the older versions hanging around, but when done fresh, no dice.

Hello there,
Am I the only one experiencing a boot to tty1 every time since the update?
No problem running Mint after starting X, but I just cannot have it start by itself.
Not sure where to report this apart from here, which is not ideal I guess.
Thank you!

Clem,
I think that this upgrade process has a major issue: It doesn’t take into consideration the packages that you have “blacklisted”. It just ignores them and upgrades them anyway, without any further notice.
I “blacklisted” Firefox to stay with version 56, because I didn’t find replacements for all the add-ons I need yet, but the Mint 18.3 upgrade process upgraded Firefox to version 57 anyway. Is this by design, shouldn’t the upgrade process take into account the packages that are held back, and “respect” this choice, as long as it doesn’t create dependency issues?
Fixing the problem was fairly easy though, I just had to go to “Ubuntuzilla” (https://sourceforge.net/projects/ubuntuzilla/files/mozilla/apt/pool/main/f/firefox-mozilla-build/) to download the latest Firefox 56 build and “force-install” it.
I think that this behavior is wrong, and that the upgrade process should at least inform the user that blacklisted packages will be upgraded anyway, written in bold and red.
Imagine my surprise next time I launched Firefox and I realized all my add-ons are gone (unusable) because it upgraded to version 57, against my decision to stick with version 56. This is just about Firefox in my case, but I guess it could also create other issues to people having blacklisted other packages.
I’m a long time Linux Mint user (since Mint 6), and also a long time Linux Mint sponsor as well, all my computers run Mint and I just love the distro, but this upgrade process bit me by surprise…

Looking at ~/.xsession-errors shows a ton of warnings about inability to access flatpak folders, for example “Unable to open /home/greg/.local/share/flatpak/exports/share/dconf/profile/user: Permission denied”. It also has a critical error: “(nm-applet:1695): Gdk-CRITICAL **: gdk_window_thaw_toplevel_updates: assertion ‘window->update_and_descendants_freeze_count > 0’ failed”. Running “cinnamon –replace” errors immediately with that first flatpak folder permission denied error. If I run “sudo cinnamon –replace”, however, that works.

I suspect this issue came up because I had previously messed with installing flatpak so I could run the MonoDevelop flatpak (the version in the Software Manager is old). I had some success with this but I never got it working quite right. As I recall, I had to run MonoDevelop as root and I did some messing around with installing flatpak both as root and not as root to try to resolve the issue. Don’t remember exactly where I left it. Anyway, long story short, I had previously messed around with using flatpak and probably didn’t install it right and now that Sylvia incorporates it directly something has gone wrong.

I’ve been trying to get away from Windows and use Linux. I started several years ago when I donated my time at Free Geeks, resulting in getting a free computer system with Linux on it. I liked the idea of free software. I did, however, have problems understanding your terminology. Yet I was able to navigate to some degree. I have the mint system currently on my computer. Its been a bitch understanding all the terminology. Really frustrating to try to work with something that you can’t understand. I would imagine that a lot of us suffer with the same problem. It would be so beneficial for you to be more user friendly and less high tech to us who aren’t computer knowledgeable. Since you aren’t, I can’t complete downloading the update to Mint. You might as well be speaking Russian to me, and Windows is looming in the background.

Bob Why: you say “I can’t complete downloading the update to Mint.”
what have you tried?
do you see an update icon in your too bar?
PS: maybe you already he the “latest and greatest” version if that actually matters
(I feel your pain, I am also lost when someone tells me how to use some Windows gadget)

hanks to the Linux MInt team for this excellent distribution.
Tip for LM 19, it would be good to add it to the applet scale, the possibility of viewing all windows of all desktops is very useful.
Have a happy 2018 and thank you again.

I don’t know… The new Software Manager is nice but there are two things that confuses me. It’s hard to understand the way applications are sorted because there is no rating visible in the list. Also there is no information about required packages until you click Install button. Please think about returning of these features.

Thanks, i just upgraded trough this guide and everything worked and it took about 30 minutes on my machine. I love that i can install spotify and skype trough flatpak. Thanks for this update, great work.

finally, all 3 machines are up-to-date with 18.3 now.
God damn, Linux Mint is so boring! not a single issue on my machines! Just update and have fun!
Thanks for that all Linux Mint guys.. will get a new year gift. 😉

Small question anyway: not possible to save the snapshots from Timeshift on network storage (NAS)?

And yet another ridiculously easy migration from 18.2 to 18.3. Everything just works… absolutely everything! Thank you for that.

I am very curious, and exceedingly hopeful, that the eventual move from 18.x to 19 will prove to be a simple and comprehensive move as well. One of the huge attractions of LM is the ease of transition with minimal downtime/reinstallation.

Thank you so much for this release! I have been with you since 2006, so I have watched Linux Mint grow a lot and improve so much over the years. Thank you to all who have worked on this project. Although I am now on disability and I can’t donate to your project I still support you in my prayers for good works. Thank you to the whole team.

After a fresh install, I check for updates and updated everything available including the kernel. I noticed vlc does not play video so I downloaded a newer version from vlc ppa but still the same issue, only audio and no video. So I install 4.14 kernel released last Nov. 12, 2017 which what I used in Linuxmint 18.2 and vlc works fine. Boot up time is now back to 7 seconds instead of 8 seconds with the supplied kernel 4.10 after update.

I upgraded to Mint 18.3, then installed the extra software such as mintreport, and then installed kernel version 4.13 and noticed two issues..

1. My mounted network shares no longer worked. I figured this out and thought I’d still mention this just in case anyone else was having the same issue. I believe the default protocol that is used when mounting cifs shares has changed to a newer version. To get a win2k share and a smb share to mount I needed to specify vers=1.0 in the mount options. Before updating I only had to add the correct vers value for shares on newer OSs.

2. My home folder was tucked it the upper right corner of my desktop, and now it gets pushed out of that corner every time I reboot the computer. I checked for things like “align to grid” and that isn’t the problem. It would seem that if the icon is “too close” to the edge of the screen it will get pushed out of that corner (more towards the middle of the screen). I don’t see anything wrong with someone placing an icon about a 1/4″ away from the edge of the screen so I would consider this to be a bug. I haven’t played with this too much yet, so I don’t have any further details at this time. I know this isn’t a serious problem, but it’d be nice if it was looked into eventually..

This is the easiest point upgrade ever. Went beautifully. Putting the option in the Edit menu and not having to add the repositories by hand was wonderful. Makes you think – why did we ever do it the other way? Kudos.

Caveat: I did not test timeshift, as I use Macrium Reflect on this dual-boot machine.

Tried to upgrade but failed with “system tray not available”? Had to restore 18.2 with Timeshift to recover. Running recommended nvidia-340 driver if that makes a difference (I know nvidia drivers are sometimes problematic).

I’m using LM XFCE 18.1 on my laptop. Opera, my favorite browser won’t install so I decided to stick with FF. Now I find out that Lastpass will not install on FF because it’s old. Should I wait for XFCE 18.3 or go to a different version of LM?I I don’t want to wait for months for XFCE 18.3 and I don’t know if other versions will work.

I’ve had 2 seething bugs with cinnamon 3.x, one is with multiple users who are are all logged into their account – at some point cinnamon begins to behave erratically for a currently logged in user. reboot or cinnamon restart fixes it but its usually a power plug pull due nothing working right. The other bug I have solved, with 18.3 the cinnamon memory leak went from a 300M a week leak to 700M a day. turning off recent files fixed this leak. I run torrent and newsreader apps, so perhaps those apps were tripping this bug.
(as reported on github [Memory Leak] ‘Recent Files’ causes excessive RAM usage. #6089)

Hello I just upgrade from 18.2 but the old software mananger remains. So I uninstall it and try to reinstall (apt-get install mintinstall). This is the error msg.
Los siguientes paquetes tienen dependencias incumplidas:
mintinstall : Depende: python-aptdaemon pero no va a instalarse
Depende: python-aptdaemon.gtk3widgets pero no va a instalarse
E: No se pudieron corregir los problemas, usted ha retenido paquetes rotos.
When I try to repair broken packages with Synaptic I get an error too.
Any advice to solve it?

I do love LinuxMint, I have moved all the computers at work (+50 PCs) from Windows to Linux Mint and we all love it. BUT, since updating from 18.1 to 18.3 (is there any possibility to update from 18.1 to 18.2?) CUPS stopped working and I find no solution to fix this. I see no printers and it is a huge problem for me and my mates at work. Any clue for solving this, people? Thank you very much!

i have just upgraded from Linux Mint Cinnamon18.2 to 18.3 and it worked very well, i am now using L.M. 18.3 and really like it, i am also using the slower Windows 10 sometimes, Linux Mint Cinnamon is Reliable, it works, my productivity is much greater with Linux Mint because it never freezes on me also Linux Mint has an outstanding network center, up an running after installation and updates 10 minutes, many compliments to the Linux Mint team for such fine work, and also thanks to all those who also contribute to make this very useful OS work so well.